Sparco 00499048 dedicated seat subframe on white background Sparco Seats - Vauxhall Astra Mk3 Direct Fit Sub-frames From £86.68 Incl. VATFrom £72.23 Excl. VAT
Sparco 00499024 dedicated seat subframe on white background Sparco Seats - Vauxhall Astra Mk5 (3-Door)Direct Fit Sub-frames From £111.00 Incl. VATFrom £92.50 Excl. VAT

Sparco Seats – Vauxhall Astra Mk4 Direct Fit Sub-frames

From £86.68 Incl. VAT

Seat fitting hardware for the Vauxhall Astra MK4. Mounting stacks are specific to the seat pattern, so tell us your seat and car and we will confirm the complete kit.

Inc/Exc VAT

Add a sliding runner:

No sliding runner required With Sparco seat slider +£30.00
SKU: 00499046 Categories: ,
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SKU 00499046 is the steel base-mount sub-frame for the Vauxhall Astra Mk4, covering the April 1998 to 2004 production run. It replaces the standard seat runners and accepts base-mount sport seats using the 345mm x 271mm bolt pattern from Sparco, OMP, or Corbeau.

Like the Corsa C application from the same era, the Astra Mk4 sub-frame requires Sparco sliding runners between the frame and the seat as part of the installation. The frame alone does not complete the mounting. Runners are SKU 0049306 (single) or SS0049302-X2 (pair), and they need to be ordered alongside the sub-frame.

Both driver and passenger sided versions are listed for RHD cars. This listing covers one sub-frame.

The Astra Mk4 is a track day staple, particularly the GSi and Coupe variants. The cabin is slightly roomier than the Corsa C’s, so a wider-bolstered seat shell is less likely to cause clearance problems here, though measuring shell width against sill and console clearance before committing to the seat is always worthwhile.

Compatible with Sparco, OMP, and Corbeau base-mount seats. At £72.23 this is the lowest price in this group of sub-frames, which reflects the straightforward geometry of the Mk4 floor plan and the car’s age in the product range.

Additional information

Brand

Sport Seat Position

,

Make & model

Fixing Type

Fixing Bolt Pattern

Construction

Compatible Seats

, ,

Sold As

What's included?

Photos are for illustration: It is very important to point out that the main product photos are entirely for illustration only. With over 1000 different frames available for different vehicles and applications, the manufacturer images provided are entirely illustration. What you receive may differ from this image.

What will be in the box? There are several types of seat frames which may be supplied depending on the vehicle and application. You may receive 1 of the following 4 types. If you are using them with a certain seat, please contact us in advance for professional advice.

#1. A full replacement frame with a sliding runner and resisitor kit
#2. A full replacement frame with a sliding runner
#3. A full replacement frame only
#4. An adaption bracket kit

Additional seat belt brackets: Each seat frame can be used for a variety of applications including road car reclining seats throuh to Motorsport FIA seats. Seat belt brackets are not required in a range of application so manufacturers generally do not supply them with their frame kits. If you require seat belt brackets please contact us in advance  

NOT SUITABLE FOR OEM/FACTORY seats removed from other vehicles

VW part 5

Bolt point tolerances:

Please note that OMP, Sparco and various other brands have a +/- 10mm tolerance on the bolt point locations on each of their sub-frames. This means that when installing the equipment into your vehicle, you may find that one or more of the bolt points may need extending for a perfect fit.

This is normal and, when installed by a skilled professional, it may only add five minutes to the total installation time. A prime example is the OMP Renault Clio MK3 frames and the BMW E46 frames as two bolt points need extending by 5mm in 75% of installations.

Drilling of frames and equipment may be required to complete your installation.

Matching seats and frames:

There are over half a dozen different bolt patterns in the industry for base mounted seats. There are over 30 different bolt patterns for side mounted seats. Aftermarket frames from different brands will have different bolt location points. 

Seats and frames are not a direct fit between brands. Seat frames are also not suitabled for OEM seats (Fitted into a vehicle from the factory) Please ensure to contact us for professional advice before purchasing your seat frames. We will be able to provide you a recommendation as to which seat frame is right for which seat. 

Bolt points

Compatible reclining seats

We’re excited to bring you our selection of reclining seats compatible with this Sparco fitting kit.

All the seats we list below fit directly to your vehicle’s fitting kit with no modifications required. 

We’ve researched each frame and seat to ensure the bolt points match for easy fitment.

Compatible bucket seats

We’re excited to bring you our selection of base-mounted bucket seats compatible with this Sparco fitting kit. 

All the seats we list below fit directly to your vehicle’s fitting kit with no modifications required. 

We’ve researched each frame and seat to ensure the bolt points match for easy fitment.

Compatible classic seats

We’re excited to bring you our selection of base-mounted classic seats compatible with this Sparco fitting kit. 

All the seats we list below fit directly to your vehicle’s fitting kit with no modifications required. 

We’ve researched each frame and seat to ensure the bolt points match for easy fitment.

Will this fit my car?
This frame is made for the Vauxhall Astra MK4. Chassis code and years matter more than the badge, as floor pans change between generations, so if your car sits near a changeover year, send us the registration and we will confirm before you order.

Which seats does it take?
It takes seats drilled 345mm x 271mm (the Sparco and OMP seat pattern). The Compatible seats tab above lists what bolts straight on. If your seat is not listed, tell us what you run and we will confirm the fit.

Do I keep fore-and-aft adjustment?
Only with a sliding runner between the frame and the seat, which is a separate part on Sparco frames. If more than one person drives the car, budget for the runner. Our guide to sliding runners explains the options and widths.

Base mount or side mount, and does it matter?
This is a base-mount frame: the seat bolts down through its base, the simpler stack that suits seats with a flat bottom and keeps the install low-fuss. Our guide on base mount versus side mount explains the whole fitting stack.

Is this for the driver or passenger side?
Both sides are available on this listing, pick driver or passenger side at the point of order (sides listed are for right-hand-drive cars). Left-hand-drive car? Ask us, as the sides swap over and availability varies by model.

Availability

Sparco stock arrives weekly

Sparco produce in batches and we receive Sparco products on a weekly basis, so the popular seats, harnesses and accessories are usually available for quick dispatch.

Less common models and colours are ordered in for you and take longer.

If you have a date

Tell us when you order and we will confirm the lead time up front rather than after the event. If it is on the shelf we will say so, and if it is coming in on the next delivery we will tell you when that is.

2 Pci Racing Mazda MX5 Mk3 4 Frames

In-store displays:

We have a premium range of over 125 seats from brands including: Bimarco, Cobra, Corbeau, Sparco, OMP, Recaro, GP-Race, and Bride to name just a few brands we work with.  

Alongside this, we also stock and display HANS devices, harnesses, race-wear, race-suits, FIA helmets and various other safety equipment. If you are looking to visit us to see and try any particular seat or product, please contact us in advance and we’ll be happy to help.

In-Store appointments:

Book now!

Due to the specialist nature of our services, we do ask that you please contact us in advance to book an appointment. We have multiple slots available each day including selected availability at the weekend.

Working by appointment allows us to dedicate our time with you and provide a personal and professional service. We’ll always ensure you leave with the right equipment for your needs.

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How it works at GSM SportSeats4U

  1. 1Add the product to your basket and go to checkout as normal.
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Klarna is available to UK residents aged 18 and over. Subject to status. Terms and conditions and late fees apply. Klarna Financial Services UK Limited is authorised and regulated by the Financial Conduct Authority. Full details at klarna.com/uk. Every way you can pay with us is on our payment and finance page, or call 0115 989 3488 and we will talk it through.

Fast delivery lead times:

If you require fast delivery, please contact us in advance of ordering and we’ll happily check stock allocation and availability for you. We carry a large amount of stock at our showroom and across multiple distribution hubs. This allows us to provide immediate dispatch across a huge number of brands from Corbeau and Cobra through to Sparco and OMP. (Does not apply to all items)

Due to the niche market we work in, some products are custom hand made to order, or special order from manufacturers like PCI Racing and Planted Technology. If you want to know how fast a product will be dispatched. Simply drop us a message through our Contact us form.

ParcelForce

Addtional lead time notes:

Quick dispatch: Stocked products are dispatched within 24-48 hours with Parcel Force.
Sparco roll cages: We can only deliver these to a registered (LTD) company address.
In-store collection: Please contact us in advance to book an in-store collection appointment.

Guides and advice

GuideThe complete guide to universal seat sliding runners
GuideBase Mount Or Side Mount? The Bucket Seat Fitting Stack Explained
GuideHow Long Do FIA Harnesses Last? Expiry Dates And The Rules Explained
GuideRoll Cage Rules Explained: What Motorsport UK And The FIA Actually Require

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